Handforth



R (No ModeL) R B.'HANDFOR.TH.'

SPRING ROLLER FOR GURTAIN FIXTURRSf No. 284,417. Patented Sept. 4, 1.883.

. UNITED STATES PATENT 'OFFICEQ BENJAMIN HANDFORTH, or HOBOKEN, NEW JERSEY.

SPRING-ROLLER FOR CURTAIN-FIXTURES.

SPECIFICATION forming partlof Letters Patent No. 284,417, dated September 4, 188?.

Application-filed June 14, 1883.

T all whom it may concern Be it known that I, BENJAMIN HANDFORTH, of Hoboken, in the county of Hudson and State of NewJersey, have invented an Improvement in Spring -Rolle1-s for Curtain Fixtures, of which the following is a specification.

Ourtain fixtures have been provided with a coupling-tube upon the spindle, a stop on the roller, and a pin on the spindle acting upon an incline in the coupling-sleeve to move the same endwise when the spindle is revolved by the spring of the curtain-fixture, and thereby block the spindle and prevent the spring unwinding when the curtain-fixture is removed from the bracket. In this instance said coupling performed no other duty, and the curtainfiXture was free to roll up or be drawn down, the parts being balanced.

My invention relates to a'compound coupling-bar that is provided with an eye around the spindle, and with inclined horns resting against a cross-pin upon the spindle in such a manner that the coupling-bar serves as a stop to hold thecurtain-roller at any place to which it may be moved, and which stop is relieved when the curtain is partially drawn down, so as to be out of the way, and allow the spring to draw up the, curtain, and said stop falls in to place when a pause occurs in the movement of the curtain, and if the curtain-fixture is lifted from the bracket the spindle is held, so

that the spring cannot unwind.

In the drawings, Figure 1 is a representation of the ends of the curtain-fixture, one part being in section. Fig. 2 is a sectional plan of the roller-end, and Fig. 3 is an end view of the The roller A is made hollow at one end, and within it is the spring B, around the spindle C, and one end of the spring is attached to the roller and the other to the spindle. These parts are of ordinary character; so, also, are

i the brackets D E for the pivot F and spindle (No model.)

| ling-bar K. This bar hangs loosely, andthere are twin projectionsi and 0 on opposite sides,

and between them there is a cross-pin, 8, pass.

.ing through the spindle. There is a jaw between the pairs of projections i o to receive the pin 3, and the inner faces of the projections 2' are inclined, as seen in Fig. 1. As the coupling-bar K hangs on the pin 8, the tendare offsets d and e, formed by depressions in the surface of said plate G, the ends of which are preferably square. Upon pulling down the curtain the ends of the offsets d 6, coming against the inclined edges 0, push outward the bar K, the incline of i raising such bar slightly on the spindle, and when the movement of the curtain and roller is arrested the coupling-bar drops back or slides down the incline of 11 by its own weight, the end of said bar dropping into the spaces or depressions between the ends of the offsets d and e in said surface-plate G, and the curtain is blocked and held, because the spring, as it tends to wind up the curtain, presses the inclines of iupon the pin 8 and the coupling-bar is forced more firmly-into place. Upon drawing down the curtain the parts are again relieved. If the curtain is allowed to'roll up rapidly by the action of the spring, the coupling-bar has not sufficient time to drop back into its notches'in the surfaceplate G, between the ends of d e, and it is kept forward by such offsets d e,-but when moving slow, or when there is a pause in the movement of the curtain, the coupling-bar locksthe parts. When the curtain-fixture is lifted out of the brackets, the parts will be locked by the spring tending to move the coupling-bar, and the pin, pressing on the inclined parts of M, forces the ,couplingbar firmly back into. the depressions between the offsets d e.

I claim as my invention 1." The combination, with the roller, spring, and spindle, of a coupling-bar having an eye depressions therein to form the offsets d e in said plate to receive the ends of the coupling- 2. The combination, in a curtain-fixture, of

and inclines 0 upon its arms, the pin 8, pass- 1o ing through the spindle andbetweensaid twin projections, and the surface-plate G, having bar and lock the fixture, substantially as specir 5 fied.

Signed by me this 11th day of J une, A. D.v 1883. 7

BENJ N HANDFORTH.

Witnesses;

GHAs. H. SMITH, WILLIAM G. MOTT. 

